Users Manual Part 1

Phoenix G2 IDU User Manual INSTALLATION

SAF Tehnika JSC

chassis and verify a potential of zero volts between the IDU chassis and cable pins 3/4

(’+’). If the measured potential is not zero, the power supply may be grounded

incorrectly and should not be used for PhoeniX G2 IDU powering. Note that this

measurement assumes that PhoeniX G2 IDU is installed and properly grounded. If that

is not the case, the same measurement can be made between cable pins 3/4 (’+’) and

a convenient ground (such as an AC outlet third-wire ground).

5. Turn the 48 V DC supply off.

6. Plug the power cable into PhoeniX G2 IDU front panel DC Power connector (DC port).

Place the voltmeter probes on the cable connector screw terminal screw heads as

described in step 2 above. Refer to Figure 2.10. Note that PhoeniX G2 IDU does not

have a power on/off switch. When DC power is connected, the digital radio powers

itself up and is operational. There can be up to 500 mW of RF power present at the

antenna port. The antenna should be directed safely when power is applied.

7. Turn on the 48 V DC power supply, and verify that the reading on the digital voltmeter

is as specified in step 3 above.

Figure 2.10 Phoenix G2 IDU DC Power Cable Connector of type 2ESDV-04

Depending on the ODU type and supported frequency the power consumption of one Phoenix

G2 IDU and 2xODUs can be up to 180 W. So this should be taken in account when choosing

power adaptor.

Powering External Multiplexer Modules (EMM)

The External Multiplexer Module (ASI, E1/T1) unit (if used) must be connected to the power

supply separately, with a nominal voltage of -48 VDC and GND must be connected to the

positive pole. Connector type 2-pin MC 1,5/ 2-STF-3,81 is supported. Its power consumption is

<9 W.

Powering Phoenix G2 IRFU

PhoeniX G2 IRFU (if used) can be powered via coaxial IF cable or using separate power supply,

providing at least 60W load power.

Note that pin 2 (‘+’) of the PhoeniX G2 IRFU DC Power connector is connected to the IDU’s

internal chassis ground. Use of a power supply with an inappropriate ground reference may

cause damage to PhoeniX G2 IRFU and/or the power supply.